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I want to write a script that connects to a 2nd host to execute commands there.

with dep deploy stage it should executes task on host: live too

  1. It connects to host: live

    makes a db-dump

    and downloads is to the deploy-computer

  2. It connects to host: stage

    uploads the db-dump

    and integrates it there

The basic parts of mysql-dump end mysl-import I know, but how to execute a task on another host?

Thanks for pointing to the right direction!

Markus Mauksch
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MonTea
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1 Answers1

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Inside each task you can run the "on" function. For this you can supply a host (in your example during a "live" task you would supply "stage"):

        on(host('stage'), function () {
            // do something
        });

If you need to supply some variables (e.g. dynamically created filenames) you can hand them to the new function like with use. So if your task saved your dump to the filename $mysqlDumpFilename, e.g.: 

        on(host('stage'), function () use ($mysqlDumpFilename) {
            // do something
        });

Docs: https://deployer.org/docs/api#on

NextThursday
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  • this way it works, but for what is the **use ($mysqlDumpFilename)** part? – MonTea Sep 16 '18 at 20:03
  • To hand over a variable/value from the current task to the new on task. You can remove it completely, if you don't need to hand over variables. – NextThursday Sep 16 '18 at 20:04